Loom attachment.



I. COULOMBE.

LOOM ATTACHMENT.

VAAPPLIOATIGN FILED 00125, 1913.

LlOf-Gl Patented July 14, 1914,

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LOOM ATTACHMENT.

APPLIOATION HLEDYOOT. a, 1913.

1,103,661. Patented July 14,1914.

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WIT/VESSES /NVE/VTOH Ana/Mfrs IGNACE COULOMB-E, 0F FALL RIVER,MASSACHUSETTS.

LOOM ATTACHMENT.

Specification of Letters Patent.

Patented July 14, 1914.

Application filed. October 8, 1913. Serial No. 794,102.

To all whom it may concern Be it known that 1, IGNACE COULOMBE, acitizen of the United States, and a resident of Fall River, in thecounty of Bristol and State of Massachusetts, have invented a new anduseful Improvement in Loom Attachments, of which the following is aspecification.

My invention is an improvement in loom attachments, and has for itsobject to provide an attachment of the character specified, wherein thetension on the warp beam is controlled directly by the weight of theyarn on the bea-m, and wherein t-he mechanism is so arranged that as theyarn feeds from the beam, the tension will automatically decrease.

'In the drawings z--Figure 1 is a front view of a portion of a loom,showing the warp beam with the attachment in place, Fig. 2 is an endview of Fig. 1 with parts of the loom broken away, Fig. 3 is a top planView of the lever mechanism, and Fig. 4 is a perspective view of thebearing levers for the spindle or journal pin of the warp beam.

The present invention is an improvement l over my priorfpatent#1,062,443, granted May 20, 1913.

. The warp beam 1 of the loom 2 is provided with the usual spindles orjournal pins 3, and the said pins engage grooves 4 and 5 respectively inbearing levers G and 7 rlhe said levers are pivoted intermediate theirends between the arms 8 of a fork at the upper end of the standard 9, bymeans of a pivot pin 10. The pin passes through the arms of the fork,and the levers, and a cotter pin 11 is provided for holding the pin inplace. The lever 6 has the end remote from the Ofroove 4 offsetlaterally away from the leveiD 7 as shown at 12, and both levers areprovided at the said end with openings 13 and 14 respectively.

It will be understood'that the mechanism at each end of the loom is thesame, and each of the standards 9 before mentioned. is connected to oneend of a plate 15, which is secured to the frame of the loom by means ofscrew bolts 16, the said screw bolts passing through slots 17 extendinglongitudinally of the plate, in order that the plates may be adjusted toproper posit-ion with respect to the loom. Levers 18 and 19 areconnected with the plate. The lever 19 is provided at the end remotefrom the standard with a hub or bearing 20, and the said hub or bearingengages a pin 21, extending laterally from the plate, and a cotter pin22 is passed thro-ugh the pin outside of the lever to hold the lever inplace. The lever 18 is pivoted on a pin 23 extending laterally from theplate, and a sleeve or arbor 24 encircles the pin between the lever andthe plate 15.

A cotter pin '25 is passed through the pin outside the lever. Each leveris slotted longitudinally, the lever 18 having a slot 26, and the lever19 having a slot 27. A bolt 28 is passed through the slot 27 of thelever 19, and a nut 29 is threaded on to the bolt adjacent to the saidlever. is on the inner side of the lever, and the outer end of the boltengages the slot 2G of the lever 18. Thus the bolt may be adjusted withrespect toboth levers, and may be locked in adjusted position bytightening the nut to compress the lever 19 between the head of the boltand the nut. r1`he lever 18 y'is extended beyond the pivot pin 23 towardthe standard, and the said end is provided with an opening 30, and witha slot 31, leading from the opening to the adjacent end of the lever. v

The brakedisk 32 at each end of the beam isengaged by a brake band 33 ofany usual or desired construct-ion. One end of the brake band isconnected to a laterally eX- tending pin 34 on one of the arms 35 of anelbow lever. The other arm 36 of the said lever is connected to theopening 14 of the bearing lever 7, by means of a chain 37 or the like.

r1`he elbow lever is pivoted intermediate its ends on a pin 38,extending laterally inward from the standard 9, and a cotter pin 39 ispassed through the pin to hold the elbow lever in place. The opening 13of the lever 6 is engaged by one end of a chain or other flexible member40, and the opposite end of the chain is connected to the free end ofthe lever 19.

A rod 42 connects the other end of the brake band with the lever 18. Therod is provided with a hook 43 at its upper end and the lower end passesthrough the opening 30 of the lever 18, and a wing nut 44 is threaded onto the rod below the lever.

The operation of the attachment is as follows When the beam is heavywith yarn, the weight of the beam and the yarn tends r1`he head of thebolt to depress the inner ends of the bearing levers, and to raise theouter ends. The lever 6 when the outer end lthereof is raised, will liftthe arm 36 of the elbow lever, thus making tension on the end of thebrake band connected with the arm 35 of the said lever. At the sametime, the outer end of the lever 7 is lifted, thus making tension on thechain 40, and tending to lift the end ofv the lever 19 adjacent to thestandard 9. Since the levers 18 and 19 are connected and since theconnection is on the opposite side of the pivot pin 23 from the chain40, the end of the lever 18 remote from the standard 9 is lifted, thusdepressing the end connected with the rod l2 and making tension on theother end of the brake band. yarn passes from the warp beam, the weightof the beam and the yarn is lessened, so that there is less downwardpressure on the inner ends of the levers 6 and 7, and as a consequencethe tension on the brake band is decreased. The connection between thebrake and the warp beam is very sensitive, responding` instantly ytoevery change in weight however slight. rlhus the actual weight of .thewarp on the beam controls the tension. After the proper relation betweenthe levers 18 and 19 is attained, no further adjustment is necessary.The adjustment may be so exactly arranged, that the actual tension onthe warp beam will be the same, from the commencement of the feeding ofthe warp until the last coil is withdrawn. -By arrangingfthe brake ateach end of the beam, the device is muc'h more sensitive, and much moreexact. In different characters of warp, the connection between thelevers may be varied, so that whatever the character of the' warp, thetension will be precisely the same until'all of the warp is unreeledfrom the beam.

1. The combination with the loom and the warp beam having brake disks atits ends, of a support at each end of the beam, a pair of bearing leversarranged `alongside each other and pivoted intermediate their ends tothe support, said levers having registering notches on the rear side ofthe pivotal connection for receiving the adjacent end of the warp beam,an elbow lever pivoted to the support below the bearing levers, a brakeband on the adjacent disk and having its inner end secured to theadjacent arm of the elbow lever, a flexible connection between the otherarm and the front end of the innerlever of ,the pair of bearing levers,a pair of' leversv pivoted to the support and extending longitudinallyof the beam, one of the said levers being pivoted to the support at theend remote from `the Vbearing levers, a flexible connection between theother end of the Said lever and the front end of the other bearinglever, the other lever of As the the last named pair being pivoted .atthe opposite endl from the pivotal connection of the first-named lever.of the pair and being extended beyond the said pivotal connection,4 anadjustable connection between the bearing levers arranged alongsideeachother and pivoted intermediate `their ends to the support, saidlevers having registering notches on the rear side of the pivotal con-Lnection for. receiving the adjacent end of the warp beam, an elbow leverpivoted to the support below the bearing levers, a brake band on theadjacent disk and'having its inner end secured to the adjacent arm ofthe elbow lever, a'flexible connection between the other arm and thefront end of the inner lever of the pair of bearing levers, a pair oflevers pivoted to the support and extending longitudinally of the beam,one of the said levers being pivoted to the4 support at the endremotefrom the bearing levers, a

flexible connection between theother end ofthe said lever and the frontend of the other bearing lever, the other lever ofthe last-named pairbeing pivoted at the oppoe site end from the pivotal connection of thefirst-named lever of the pair and being extended beyond the said pivotalconnection, an adjustable connection between the extended end of thesaid lever and the front end of the brake band, and an adjustableconnection betweenthe said levers intermediate their pivotalconnection.` j

3.. The combination with the loom and the warp beam, of a pair ofbearing levers for each end of the beam, said levers being ypivoted to acommon support intermediate their ends and having registering notches inrear of the pivotal connection for receiving the adj acentend of thewarp beam, a brake band at veach end of the beam, an elbowlever pivotedbelow the inner bearing lever, the inner end of the brake band beingconnected to the adjacent end of the elbow lever, a connection betweenthe other end of theelbow lever and the frontend of the inner bearinglever, a pair of levers arranged alongside each other below the bea-m ateach end thereof, said levers being pivoted at opposite ends, aconnection between the front end of the outer bearing lever and theadjacent end of the lever whose pivotal connection is remote from thesaid end, an adjustable connection between the levers intermediate theirpivotal connection, the other lever beingextended beyond its pivotalconnection and having an izo adjustable connection between the extendedend and the front end of the inner bearing lever.

4. In a loom the combination with the warp beam, of a pair of leverspivoted at each end thereof and supporting the beam in rear of theirpivotal connection, a brake band encircling each end of the beam, aconnection between the rear end of the brake band and the front end ofone of the said levers for making traction on the said end of the bandwhen the front end of the bearing lever moves upward, a pair of leverspivoted below the beam at each end thereof, and extending longitudinallyof the beam, the members of each pair being` pivoted tothe loom at theiropposite ends and lying alongside each other, an adjustable connectionbetween the said levers intermediate their pivotal connection, aconnection between the free end of the lever whose pivotal connection isremote from the adjacent end of the beam and the front end of the otherbearing lever,

the other lever of the pair being extended beyond its pivotal connectiontoward the adjacent end of the warp beam, and an adjustable connectionbetween the said extended end and the front end of the brake band.

5. In a loom, the combination with the warp beam, of a pair of leverspivoted at each end thereof and supporting the beam in rear of theirpivotal connection, a brake band encircling each end of the beam, aconnection between the rear end of the brake band and the front end ofone of the said leversfor making a traction on the said end of the bandwhen the front end of the bearing lever moves upward, and a connectionbetween the front end of the brake band and th-e front end of the otherbearing lever forL making traction on the said end band when the frontend of the said bearing lever is moved upward.

6. ln a loom, the combination with the warp beam, of a pair of leverspivoted intermediate their ends at each end of the beam and supportingthe beam on one side of their pivotal connection, a brake bandencircling the beam at each end thereof, and a connection between eachend of the brake band and f the opposite end of one of the levers fromthe brake beam for making traction on each end of the brake band whenthe opposite ends of the levers from the warp beam are moved upward.

IGNACE COULOMBE.

Witnesses G Eonon H. PAEAUD, PHILIAS ST. DENIS.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. c.

of the brake

